Between 1986 and 1997 a total of 1418 patients were examined at the Clinical Analysis Teaching and Research Laboratory of Maringá State University (LEPAC/UEM) for cutaneous leishmaniasis by direct examination of stained smears made from the lesions, the Montenegro skin test and the indirect immunofluorescent antibody test. Nine hundred and fifty five patients (67.3%) were positive for at least one of the three tests and of these 804 (84.2%) were considered to have contracted the disease in Paraná State; 665 (69.6%) were between 15 and 49 years old; 658 (68.9%) were males; 523 (54.8%) sought medical advice during the first three months of their infections and 74 (7.7%) had mucosal lesions. Of the 83 counties of Paraná State, where the patients had most probably acquired their infections, 44.7% were from the counties of São Jorge do Ivaí (10.2%), Doutor Camargo (9.8%), Terra Boa (7.3%), Maringá (7.3%), Jussara (6.0%) and Cianorte (4.5%). Seventy seven strains of Leishmania (Viannia) braziliensis were isolated and 63.6% of these strains belong to serodema 1.
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